Transfer-sheet and method of forming same.



A. L. CLAPP.

TRANSFER SHEET AND METHOD OF FORMING SAME.

APPLlCATION FILED JULY 16.1914.

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' Specification of Letters Patent.

Application filed July 16, 1914. Serial No.'851,34 9.

. To all whom it may concern:

- Be it known-that I, ALBERT L. CLAPP, a citizen of the United States, and resident'of Braintree, county of Norfolk, State of Massachusetts, have invented an Improvement in Transfer-Sheets and Methods of ii Forming Same, of which the following destenciling in gold,

on leather, shoes,

"scription, in connection with the accompanying drawings, i a specification, like letters on the drawings representing like parts.

My present invention is an improved means of transferring or embossing and silver, bronze, colors, black or white, whereby the name, the like may be stamped'in the desired color directly 011 an article.

in embossing or stencilingfirm names, trademarksfand the like books, or on cloth, canvas, silk, or satin materials, such as the linings of clothing, gloves, hats, etc. My invention, broadly considered, comprises a thin paper strip, adapted to receive and carry the gold, silver or color which it is desired to emboss on letters or design or any Work, which strip will enable the letters or design to be stamped directly on the article by' the application of a suitably heated, die. Heretofore it ha been necessary in embossing or stenciling, to specially treat the surface of the work to which letters or a design were to stamped and countersunk therein.

he applied, such treating consisting in applying sizing or the like, then the gold leaf, chalked paper, or similar metal leaf was laid on the work, and by means of a die means of my present invention I provide a prepared embossing strip, containing any desired color chemically compounded so as to adhere directly on to the work without special sizing or the like, andewhich color'also will leave the paper strip carrying it freely, clearly and cleanly, substantially all such color being transferred from the carrying strip directly on to the work. Furthermore by the present invention, I am enabled to utilize waterproof colors, which thereby secure permanency to the embossed design, and 3 by provision of means for the colors to leave the carrying strip clearly, a brilliancy in the embossed Work is insured.

A further important feature of my present invention is that a paper strip or carrier for the colors is so prepared as to be flxible and maytherefore be rolled on spindles, folded if desired, and of course may be handled design, or

My invention is espeleaf, or' other metal leaf,

compound, on the withoutdanger of the colors carried by such strip being damaged or coming off of the strip. To this endl. chemically compound the colors so as to leave the paper strip on which they -are spread only under the inuence of heat and pressure, such heat and pressure being applied to the reverse side of the paper strip by means of a suitable die, which die carries the design, letters, or the like, intended to be embossed on the work.

The advantages incident to my invention of a strip carrying chemically prepared and inherently adhesive colors for embossing purposes, will be readily appreciated when it 'isrealized that heretofore it has been customary to use chalk colors on paper sheets, which sheets. had to be kept flat, wherein the colors easily rubbed off in handling, Were diflicult to transport or keep, and which also required special treating, sizing, or'the like, of the work before the colors could be applied thereto. A similar objection in the prior use of gold leaf, silver was present, since such sheets are easily poiled by folding, or even falling to the floor, must be most carefully handled and can only be packed flat for keeping or shipping and also require separate sheets of tissue or the like covering each leaf. My chemically prepared contrary, is flexible, may be folded, and is not damaged by falling on the floor or handling, and is adhesive to the work without coating either the Work or the criilor to be applied with sizing, glue, or the li e.

strip or carrier is to prepare one surface with any suitable filler or coating, such as dextrin, to prevent the color compound from permeating the paper strip applied to that side, and furthermore to insure that the color compound will all leave the paper strip in a clear, clean, sharp manner when the heated die is applied thereto. The color compound is then spread upon the side of the paper sheet or strip so prepared in a heavy or light coat, as best suitedfor the particular Work in hand, and as soon as the strip is dry it is ready for use. In use, the colored strip is applied with the colored side downwardly upon the Work to be stenciled, embossed, or stamped, and a sufiiciently heated die is applied to the reverse side of the paper strip. The heat and pressure Patented @ct. ll, 191$;

-The first step for preparing the paperchemically prepare a color compound in a varietyof ways and of a great variety of proportions, the important feature of my invention being that the color,-gold, silver, red, blue, bronze, black or white, may be compounded either from dye or pigments, together with such ingredients as will render the compound adhesive under the application of heat and pressure, and readily transferable from a thin paper strip to the work, and to permanently adhere to said work so transferred. I have successfully transferred various colors to leather, to fabric, canvas, satin, silk, and the like, as well as to wood pulp, glass, and many other articles. Even greasy or oily leather and glazed leather, which have heretofore been very difficult to emboss by any means, may be readily stamped and will permanently hold letters, designs, or the like embossed with my compound as above explained.

Referring to the drawings, illustrating my colored strip and the manner of embossing therefrom,

Figure 1 is a. fragmentary view of the embossing strip, showing the same after two impressions havebeen taken therefrom, as well as a portion of the unused strip;

Fig. 2 is a view in cross section, considerably enlarged, to show that the coloring compound may be carried clear to the edge of the strip;

Fig. 3 is a plan view of trademark lettering stamped from my strip; and

Fig. 4 is a view of the lettering shown in Fig. 1 and stamped therefrom on a book cover.

The paper strip 1 is coated with my chemically prepared compound 2 as will be explained, this compound being of any desired color, as well as gold, silver, bronze, or the like. In using the same, the prepared side 2 is laid face downward upon the work, as, for example, the heel pad 3, or the book cover 4, and a heated die is then brought into contact on the uppermost surface of the paper 1, the heat and pressure at once transferring the colored coating 2 on to the work wherever the die is applied. The coating, being inherently composed of sufficient adhesive, adheres to the work, transferring all the coloring compound from the particular portion under the die being used. The trademark 5 illustrated in Fig. 4. and

stamped from the embossing sheet shown in Fig. 2, leaving the corresponding blanks, as

indicated at 6 insaid sheet, may thus be considerable leeway is feasible in the formula used, and for the particular work de sired, but in color work, for. example, I find that the following formula gives very satisfactory results, i. 6., 6 cc. amylacetate, 2 gr.

rosin, 1 cc. linseed oil, 1,,- gr. nitro cellulose, 4 gr. bronze powder, all thoroughly mixed together, and then applied to the sheet of paper in an even coating by brush, or flowing it on to the paper. One of the important features of the rosin is to make the compound leave the paper cleanly and fully, and also lowering the melting point of the entire coloring compound, softening it sufficiently so that it will fuse under light heat and pressure and be transferred to the work. Instead of 4 gr. bronze powder, I can use the foregoing formula by substituting 6 gr. coloring pigment with good success. In making a red compound, for example, I may use 40 cc. of carbon tetrachlorid, 7 gr. rosin dissolved therein 2 gr. ceres red, and add a slight amount of adhesive, thoroughly mix the compound and apply the same to the paper and it will be readily transferred under heat and pressure as above explained. In preparing a blue coloring compound, for example, I employ 40 cc. alcohol, 7 gr. rosin, 4 gr. ceres blue, 2 gr. dry shellac, and a small amount of adhesive, such as 1 gr. nitro-cellulose, and mix thoroughly together and apply to the paper strip. In preparing my embossingstrip for use on oily leather or glazed leather, it may hesive to enable the same to be transferred directly to the work, without specially preparing the work, and to be so transferred under heat and ressure. It will also be understood that, 1n employing dyes where a solvent is employed to aidin thinning the compound for treating or coating the strip, the solvent will then evaporate and leave the residue free thereof, and Iwish to claim this feature of-the invention. In employing a pigment, however, it will doubtless be advisable to use some liquid thinning medium which will notnecessarily dissolve the pigment, but merely hold it in suspension to facilitate the coatin operation, and such thinning medium wi then evaporate after a proper period of time. I wish, therefore, to cover broadly my invention, either when the solution or thinning medium has evapo rated, or before it has evaporated, as in either instance the strip may be used.

Having described my invention, whatI claim as new and desire to secure by Let; ters Patent is:

1. An article of manufacture comprising a paper backing, and a coating of chemicall prepared color compound including amy acetate, rosin, linseed oil, nitro-cellulose,

a paper strip, and a coating on one side of I said strip of a chemically prepared solution, comprising 6 cc. amylacetate, 2 gr. rosin, 1 cc. linseed oil, one-half gr. nitro-cellulose, and 4 gr. colored powder, mixed together and applied to said stri In testimony whereo I "have signed my name to this specification, in the presence of two subscribing witnesses ERT L. CLAJPP. 

